Epson Powerlite 7900p Multimedia Projector Users Guide

Setting Up the Projector31
Connecting the Cable for Remote Mouse 
Control 
If you’ve connected a computer as described in this chapter, you 
can use the projector’s remote control as a wireless mouse. This lets 
you control your computer and click through slideshow-style 
presentations, such as PowerPoint, from up to 30 feet away. 
The wireless mouse function is supported on systems with a USB port 
running Windows XP, 98SE, 2000, or Me, or Macintosh OS 8.6 to 
OS X 10.2 or later.
1. Obtain a...

32Setting Up the Projector
Connecting an External Monitor
If you want to monitor your presentation close-up (on a monitor 
placed beside the projector) as well as on the screen, you can connect 
an external monitor. You can use it to check on your presentation or 
switch between picture sources, even if you’ve pressed the 
A/V Mute 
button to turn off projection on the screen. 
To attach an external monitor, connect it to the projector’s 
Monitor 
Out
 port, as shown:
 
Follow these guidelines to view...

Setting Up the Projector33
Playing Sound Through the Projector
You can play sound through the projector’s speaker system, or you can 
attach an external speaker system. (Attaching speakers to the projector 
instead of directly to the audio source lets you use the projector’s 
remote control to adjust the sound.)
Connecting Audio Equipment to the Projector
To play sound through the projector, follow these steps:
1. Obtain a commercially available stereo mini-jack or RCA-style 
audio cable. Which cable you...

34Setting Up the Projector
Connecting External Speakers
To connect speakers to the projector, follow these steps:
1. Obtain the appropriate cable to connect your speakers. 
Depending on your stereo system, you may be able to use a 
commercially available audio cable with a stereo mini-jack 
connector on one end, and pin jacks on the other end. For some 
speaker systems, you may have to purchase a special cable or use 
an adapter to connect to your speakers.
2. Connect the stereo mini-jack end of the...

35
1
Projecting
Once you’ve set up the projector, you’re ready to turn it on, adjust 
the image, and give your presentation.
Although you can operate the projector without it, the remote control 
lets you use additional features. See Chapter 3 for instructions on 
using the remote.
Follow the guidelines in this chapter for: 
■Turning the projector on and selecting the image source
■Troubleshooting display problems
■Adjusting the image
■Adjusting the volume
■Projecting images without a screen
■Shutting...

36Projecting
Turning On Your Equipment
Make sure your projector and other equipment are set up as described 
in Chapter 1. Then follow the instructions below to start the projector 
and display an image. 
If you turn on any connected computer or video equipment before 
starting the projector, this lets the projector automatically detect and 
display the image source. If you turn on the projector first, or have 
multiple pieces of connected equipment, you may have to select the 
image source manually (see...

Projecting37
4. Press the red PPower button on top of the projector—or press 
the P
Power button on the remote control.
(If this is your first time using the remote control, make sure the 
batteries are installed and the on/off switch on the side of the 
remote is turned on; see page 52.) 
The PPower light flashes green as the projector warms up, and 
an image begins to appear. When the PPower light stops flashing 
and remains green (in about 20 seconds) the projector is ready 
for use. 
5. If you’ve...

38Projecting
Selecting the Image Source
Selecting the image source lets you switch between images input from 
different pieces of equipment connected to the projector (such as a 
computer or DVD player). 
If you don’t see the image you want, select it using the 
Source 
buttons either on the projector or the remote control. 
The 
Source buttons work as follows:
■The projector has two Source buttons. Use the Computer/DVI 
button to switch between equipment connected to the 
Computer 
and 
DVI ports. 
Use...

Projecting39
What To Do If You See a Blank Screen
If you see a blank screen or a blue screen with the No Signal message, 
try the following:
■Make sure the cables are connected correctly, as described in 
Chapter 1.
■Make sure the P Power light is green and not flashing and the 
lens cap is off. 
■If you’ve connected more than one computer and/or video source, 
you may need to press one of the 
Source buttons on the 
projector’s control panel or the remote control to select the 
correct source. (Allow a...

40ProjectingFrom the Control Panel, open the 
Display utility. In the Display 
Properties dialog box, click the 
Settings tab, then click 
Advanced. The method for adjusting the settings varies by 
brand; you may need to click a 
Monitor tab, then make sure the 
external Monitor port is set as your primary display and/or 
enabled. See your computer’s documentation or online help for 
details. 
If you’re using Macintosh OS X:
You may need to set up your system to display on the projector screen 
as well...